What the vulnerability does
01Description
Open redirect vulnerability in the Layout module's SEO configuration in Liferay Portal 7.4.3.70 through 7.4.3.76, and Liferay DXP 7.4 update 70 through 76 allows remote attackers to redirect users to arbitrary external URLs via the `_com_liferay_layout_admin_web_portlet_GroupPagesPortlet_backURL` parameter.